turbo'ing my 1HZ troopcarrier

Harry
My last cruiser ( 1996 75 series trayback ) presented the same questions you are asking now.
My solution was to replace the engine complete with a 1HDT unit from a jap importer of 1/4 cut units
The price paid was $ 10,000 inc GST + fitting but had to run a new brake vacuum line, replace air cleaner top and fit heavy duty clutch plus remove my existing extractors.
The plus of doing it this way is the bottom end is stronger, the 1/4 cut imports are usually reasonably low km ( mine was @ 89k ) and most important is engine is all ready to go with profound improvement all round
The other added incentive is I sold my old motor for $3,500 so the overall cost was quite reasonable.
The adage that they are not compatible in Australia is rubbish after the 6 years I kept it there were zero problems with fuel or any other issues whatsoever, and that covered over 170,000 k around WA loaded with work gear.
Hope it helps with your quest for a bit more grunt.
Cheers & Regards
Paul

After a lot of deliberation I fitted an after market water cooled turbo 200,000 kms ago to my 1HZJ75, didn't get much change out of $4K but think now it was money well spent. You won't get the fuel savings they claim but the improvement in towing and general performance is well worth it.
rr

I did my '05 HZJ105 a few months back and I'm very happy with it.

We've recently done 7241 ks in 3 weeks towing a Jayco swan camper van with enough winter gear for 3 adults and 3 kids, fridge full, both fuel tanks full, gross weight a little under 5 tons.

I hadn't taken the swan far, never with as many people/gear on an extended trip so I have no idea how it would be on fuel pre turbo, on short trips I did It seemed pretty bad, but no real numbers to work with.

Fuel economy?, when pushed with cross winds, head winds, at freeway speeds, it was around 17-18 liters/100 ks, backed off to 85/90 kph and the it dropped to about mid 14's.
Its never used so much, but as sated, I haven't towed the van any real distance so i cant really judge, It did come very clear that by backing off a bit saved heaps in fuel

Performance?, It hold the hills as good if not marginally better now loaded up with c/van on the back, then it did before hand with just me in it pre turbo.
With just me and nothing in the back, it goes real well, still not suited for the traffic light drags but when it comes to a hill, it just knuckles down, that's torque, that's what I've gained the most, that's what gets it up the hills.

Running around Urban Brisbane as a work hack and school runner, with little freeway time its using 13-14/ 100ks, marginally better than before, but driven conservatively (real hard to do now), if you want to play you will pay at the pump.

I got little change out of $6K, but instal included full dyno, new injectors, pump timing, filters, full 3 inch beaudesert exhaust, valve shims adjustments, basically a bloody good tune, which is what it really needed.

I've had to adjust my driving to suit, no more having the put the foot to the floor from second gear up, just needs a gentle touch now, Its been set up for power and will over fuel making lots of black smoke when not in boost, but once IN boost, different story.
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Turbo begins to spool at 1000 rpm, full boost at 1800 rpm (also peak torque),
Its has lots of lag the lower in the rev range, but has virtually nil lag once above 2000 rpm, put the foot down and goes straight away.

Shane

thanks for the replies guys,

would love to put a factory turbo motor in but at 10 grand minus what i get for my moter it is well outside the budget.

The denco turbo kit comes with a 2.5 inch exhaust and most people on the forum are saying the 3 inch is the go but i am only looking for the 7-8 pound boost mark. will the 2.5 be heaps for this or is it really worth hunting the 3 inch?

Hi Shane ,

I had a boost compensator fitted with my AXT Turbo system and when adjusted properly there was little smoke but similar power as against when first fitted by agent. He just screwed fuel setting for a certain amount of smoke on acceleration which caused excessive oil sludging, engine noise and heavier fuel consumption. I have seen some Denco systems without this compensator which can be set to bring fuel on earlier to give a better low down response and/or earlier boost.
Cheers Kev.

Hi Harry J,

I would definitely go the 3" mandrel exhaust for the 4.2l engine and also set up EGT gauge and Boost gauge for safety reasons. I have used these on the last three of my vehicles and still use them on my factory turbo 1HDTFE 6cyl with Gas and 3" system as I have upgraded GVM of HDJ79 Ute and tow 3.5 tonne van.

Cheers Kev.

Cheers Kev,

I've just been quoted approx $1500 for fitment and dyno tune.
Is this a fair price or should I be getting it cheaper elsewhere?

Thanks,
Harry

Hi Again Harry j,

Does that include the gauges I mentioned also.
Kev.

Harry

I fitted a Denco turbo kit to my 1HZ 2004 2 men 8 hrs with gauges
it is not a big job the difference to the cruiser is nothing short of unbelievable
everything you need comes in the kit and just bolts on

cheers george